Angels in Waiting, a nonprofit 501©(3) charity, created by Nurses who are addressing the needs of our growing medically fragile foster care population. Call Angels in Waiting USA at 800 974-4274 Miracles occur through the hearts and hands of nurses… Angels in Waiting (AIW) , tax-exempt, 501(c)(3) charity created by nurses who are addressing the needs of medically fragile Foster Care Infants & Children. AIW’s Mission Statement AIW's mission is to help the rising population of America’s drug exposed medically fragile foster care infants, children, and youths. Our most vulnerable and underserved population by ensuring they grow up in the loving homes, hearts, and hands of dedicated Nurse-Foster Providers (Nurse-Resource Providers).